|Jun 10, 2012, 11:36 AM|
DSM2/DSMX compatible transmitter module for JR radio
2/6/2013: I am now out of the JR modules for now. I will post a message when I have made some more.
10/23/2012: I need to mark this thread as sold as I have sold all the JR modules I have right now. I will be building another batch soon but I can't give a date on when they will be done. I am hoping no later than the first week in November. Thanks to all who have purchased them.
6/25/2012: A note to those who are thinking to use this module with a Turnigy 9x and factory V2 firmware: It appears that when a new model is set up in the radio programming, the radio defaults to Mode 1. After setting up a new model, make sure to set the radio to Mode 2 and the module works fine. There is also an issue with the pins in the 9x the module socket being a bit too short for reliable contact. The existing pins need to be replaced with longer ones. For those that need it, I will send a 5 pin header along with the module that is about 4mm longer than the stock pins and it will be up to the user to replace the stock pins. Desoldering/Soldering skills will be required for this mod. Many thanks to UAVJOE who helped sort this out.
6/10/2012: I have another
"Flew my new Beast BNF today with your module. Binds fast and works great. Can't attest to range as I'm flying a micro size plane and keep it close in. The range check was great, went out past 40 paces on low power with no problems." Bob Y., Austin, TX.
I am selling a custom made 100% DSM2/DSMX compatible transmitter module for use with JR transmitters. This module is 100% completely DSM2 and DSMX compatible and is able to transmit in either the original DSM2 protocol or in the new frequency hopping DSMX protocol!! Yes, you read correctly; it can transmit in DSMX mode!! Switching between modes is quick and easy using the transmitter throttle stick and the bind button on the module. I am asking $85 shipped to CONUS. I will ship internationally for $10 via USPS first class mail.
Disclaimer: This is not a Spektrum brand module and, except for the plastic case/antenna, does not contain any Horizon Hobby or Spektrum parts.This module is custom designed with custom firmware and built using a 2.4GHz RF module based on the proven Cypress CYRF6936 2.4GHz DSSS radio chip, the same RF chip used all Spektrum radio equipment. This same RF module is used by another popular RC radio equipment manufacturer in their FCC certified transmitters.
This module is a proprietary design, hand made, using only high quality components and thoroughly tested.
This module is 100% functionally equivalent to the popular Spektrum DM9 module and just like the original Spektrum DM9 module, it converts your JR brand (or some others) module based transmitter to DSM2. But this module has the added ability to transmit in DSMX mode too!
This is a full range module with an average RF output power level of +20dBm.
In addition, this module is ideal for anyone looking to convert their non-JR brand transmitter to DSM2/DSMX. This module will work with any polarity of PPM signal input and will accept from 1 to 9 channels. It comes configured JR channel order (T.A.E.R.) but can be changed to Futaba (A.E.T.R.) or Multiplex (A.E.R.T.) channel order by changing jumpers on the circuit board. That means you can convert a Futaba transmitter for use with the popular Bind-N-Fly micro aircraft without worrying about the servo channels being in the wrong order. The elevator stick will correctly control the elevator, same for the throttle, ailerons and rudder. Other radio manufacturers channel order can be substituted upon request.
The firmware in this module has been extensively tested with a wide variety of DSM2/DSMX Spektrum receivers including the AR6400 micro brick RX used in the popular Eflite, Parkzone and Blade line of micro aircraft and helicopters, AR7000, AR6110, AR9000, AR6210 and HK Orange receiver. It performs every bit as well as the original DM9.
- Protocol - DSM2 or DSMX mode.
- Easy to switch between modes using throttle stick and bind button.
- Compatible with any DSM2 or DSMX receiver, including DSM2/DSMX Bind-N-Fly micro aircraft and helicopters and the Hobby King line of Orange DSM2 compatible receivers.
- Accepts any polarity PPM signal with servo pulse lengths between 0.8ms and 2.2ms. Module will limit out of range servo pulses to these values.
- Resolution - DSM2 - 10 bit. DSMX - 11 bit.
- Works with any transmitter that outputs a standard PPM signal from 1 to 9 channels.
- Maximum number of channels transmitted: DSM2 mode: 9 channels. DSMX mode: 7 channels.
- RF output power: +20dBm.
- Power input voltage range: 5 - 15 volts.
- PPM signal voltage: 5V to 12V
- Exact fit JR transmitter case for correct fit in JR module based transmitters.
- Informative status LED that does more than just tell you if power is on.
- 14 day money back return policy if not satisfied.
|Jun 16, 2012, 09:50 AM|
From the research I have done the dm9 the main thing is the channel sequence from the 9x. From what I understand it uses the futaba sequence an the dm9 uses the jr sequence. Some have said that once you change the firmware in the 9x you can resequence them and it should work. The only other problem I have heard is possibly the ppm sig voltage being too low for the dm9. I will need to do more research before I buy. Thanks
|Jun 16, 2012, 05:21 PM|
With my module, you are able to select between 4 different channel sequences; JR, Futaba, Airtronics, and Multiplex (I can substitute others upon request) so changing the firmware on the 9x is not necessary. I can tell you that my module will definitely work with a PPM siganl voltage between 5 and 12 volts. If the 9x puts out should put out something below 5 volts, then I can reduce the value of a series input resistor accordingly to make sure it works.
|Jun 17, 2012, 12:11 AM|
I'd definitely buy one of these if compatability with the Flysky TH9x can be confirmed. I believe there was an issue with pin length/postion that needed to be addressed with the DM9 but I may be wrong.
|Jun 17, 2012, 05:13 PM|
The problem with the pins is easy tho fix.
You need to cut the raised section on the 9x around the pins in the section where the mod. goes.
I will post here How it works when i get it in my hands.
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